According to Nasia Safdar, an infectious disease professor at the University of Wisconsin in the US, this concept has attracted interest from the pet food industry. The idea would be to develop products marketed as promoting the growth of beneficial bacteria in cats and dogs, which might then be transferred to their owners, she says.
“That angle has been an attractive one for people to fund, because for most of us, it’s the human condition that we’re interested in,” says Safdar. “So what role can the animal play in that?” she asks.